/*
 * Homepage Redesign — "Architectural Intelligence · Light", tuned for PMI.
 * Light, approachable B2B layout: cool light neutrals, white cards with hairline
 * + soft shadow, indigo brand + warm tertiary as complementary accents, near-
 * obsidian ink, serif headlines. Dense + scannable. Front page only.
 * Namespace: .hx-*. Built on --nl-* tokens (style.css).
 * @package neurallab
 */

/* ───────────────────────── Section rhythm ───────────────────────── */
.hx-section { padding: clamp(44px, 5.5vw, 76px) 0; position: relative; }
.hx-section--alt { background: var(--nl-bg-lowest); }

.hx-head { max-width: 680px; margin: 0 0 clamp(26px, 3vw, 40px); }
.hx-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.hx-eyebrow {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--nl-font-sans); font-size: .7rem; font-weight: 700;
  letter-spacing: .16em; text-transform: uppercase; color: var(--nl-accent);
  margin: 0 0 12px;
}
.hx-eyebrow i { width: 13px; height: 13px; }
.hx-title {
  font-family: var(--nl-font-serif); font-weight: 500;
  font-size: clamp(1.6rem, 2.8vw, 2.3rem); line-height: 1.14;
  letter-spacing: -0.02em; margin: 0 0 12px; color: var(--nl-text);
}
.hx-title em, .hx-title .ac { font-style: italic; color: var(--nl-accent); }
.hx-desc { font-size: clamp(.98rem, 1.1vw, 1.06rem); line-height: 1.6; font-weight: 400; color: var(--nl-text-dim); margin: 0; }

/* ───────────────────────── Hero (light, airy, shorter) ───────────────────────── */
.hx-hero {
  position: relative; overflow: hidden;
  min-height: clamp(420px, 60vh, 560px);
  display: flex; align-items: center;
  padding: clamp(100px, 12vh, 144px) 0 clamp(44px, 6vw, 72px);
}
/* Soft light wash with indigo + warm blooms (no dark backdrop). */
.hx-hero::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(920px 540px at 86% 4%, rgba(84,87,238,.14), transparent 62%),
    radial-gradient(680px 460px at 14% 96%, rgba(234,122,46,.07), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, var(--nl-bg) 100%);
}
.hx-hero__inner { position: relative; z-index: 1; max-width: 52rem; }
.hx-hero__title {
  font-family: var(--nl-font-serif); font-weight: 500;
  font-size: clamp(1.9rem, 4vw, 3.1rem); line-height: 1.06;
  letter-spacing: -0.03em; margin: 0 0 16px; color: var(--nl-text);
}
.hx-hero__title em, .hx-hero__title .ac { font-style: italic; color: var(--nl-accent); }
.hx-hero__sub {
  font-size: clamp(1rem, 1.3vw, 1.18rem); line-height: 1.55;
  font-weight: 400; color: var(--nl-text-soft); max-width: 38rem; margin: 0 0 26px;
}
.hx-hero__actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.hx-hero__meta {
  display: flex; flex-wrap: wrap; gap: 10px 24px; align-items: center;
  margin-top: 28px; padding-top: 20px;
  box-shadow: inset 0 1px 0 0 var(--nl-border);
}
.hx-hero__metaitem { display: inline-flex; align-items: center; gap: 8px; font-size: .88rem; color: var(--nl-text-dim); }
.hx-hero__metaitem i { width: 15px; height: 15px; color: var(--nl-accent); }

/* Button sizing — confident but not chunky */
.hx-btn-lg { padding: 12px 24px; font-size: .92rem; }

/* ───────────────────────── Premium card grid (light) ───────────────────────── */
.hx-grid { display: grid; gap: 16px; }
.hx-grid--2 { grid-template-columns: repeat(2, 1fr); }
.hx-grid--3 { grid-template-columns: repeat(3, 1fr); }
.hx-grid--4 { grid-template-columns: repeat(4, 1fr); }

.hx-card {
  position: relative; display: flex; flex-direction: column;
  background: var(--nl-card); border-radius: var(--nl-radius-lg);
  box-shadow: var(--nl-card-shadow);
  padding: 24px 22px;
  transition: box-shadow .25s ease, transform .25s ease;
}
.hx-card:hover { transform: translateY(-3px); box-shadow: var(--nl-card-shadow-hover); }
.hx-card--link { text-decoration: none; color: inherit; }
.hx-card--link:hover { text-decoration: none; }
/* Top accent bar (sits above the hairline) */
.hx-card--top-indigo { box-shadow: inset 0 3px 0 0 var(--nl-accent), var(--nl-card-shadow); }
.hx-card--top-tertiary { box-shadow: inset 0 3px 0 0 var(--nl-accent-2), var(--nl-card-shadow); }
.hx-card--rim-error { box-shadow: inset 3px 0 0 0 var(--nl-danger), var(--nl-card-shadow); }

.hx-card__icon {
  width: 42px; height: 42px; border-radius: var(--nl-radius);
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 14px; background: rgba(84,87,238,.10); color: var(--nl-accent);
}
.hx-card--rim-error .hx-card__icon { background: rgba(216,69,63,.10); color: var(--nl-danger); }
.hx-card__icon i { width: 21px; height: 21px; }
.hx-card__tag { font-family: var(--nl-font-sans); font-size: .66rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--nl-accent); margin: 0 0 10px; }
.hx-card__title { font-family: var(--nl-font-serif); font-weight: 600; font-size: 1.15rem; line-height: 1.25; letter-spacing: -0.01em; margin: 0 0 8px; color: var(--nl-text); }
.hx-card__text { font-size: .9rem; line-height: 1.55; color: var(--nl-text-dim); margin: 0; }
.hx-card__tags { font-size: .76rem; font-weight: 600; letter-spacing: .01em; color: var(--nl-accent); margin: 12px 0 0; }
.hx-card__link {
  margin-top: auto; padding-top: 16px;
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--nl-accent); font-weight: 600; font-size: .88rem;
  transition: gap .2s ease;
}
.hx-card--link:hover .hx-card__link, .hx-card__link:hover { gap: 10px; text-decoration: none; }
.hx-card__link i { width: 15px; height: 15px; }

/* ───────────────────────── Split (header + figure) ───────────────────────── */
.hx-split { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(28px, 4vw, 56px); align-items: center; margin-bottom: clamp(28px, 3.5vw, 44px); }
.hx-figure { position: relative; }
.hx-figure::before {
  content: ""; position: absolute; inset: -8%; z-index: 0;
  background: radial-gradient(circle at 60% 40%, rgba(84,87,238,.18), transparent 60%);
  filter: blur(34px);
}
.hx-figure img {
  position: relative; z-index: 1; display: block;
  width: 100%; height: clamp(200px, 22vw, 280px); object-fit: cover;
  border-radius: var(--nl-radius-lg); box-shadow: var(--nl-shadow);
}

/* ───────────────────────── Numbered steps ───────────────────────── */
.hx-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; }
.hx-step { padding: 6px clamp(14px, 1.6vw, 24px); text-align: center; position: relative; }
.hx-step:not(:last-child) { box-shadow: inset -1px 0 0 0 var(--nl-border); }
.hx-step__num {
  width: 46px; height: 46px; border-radius: 50%; margin: 0 auto 14px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--nl-font-serif); font-weight: 600; font-size: 1.25rem; color: var(--nl-accent);
  background: rgba(84,87,238,.10); box-shadow: inset 0 0 0 1px rgba(84,87,238,.22);
}
.hx-step__title { font-family: var(--nl-font-serif); font-weight: 600; font-size: 1.1rem; letter-spacing: -0.01em; margin: 0 0 7px; }
.hx-step__text { font-size: .88rem; line-height: 1.55; color: var(--nl-text-dim); margin: 0; }

/* ───────────────────────── Orderbrain bento ───────────────────────── */
.hx-bento { display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px; }
.hx-feature { grid-column: span 8; position: relative; border-radius: 10px; padding: 1px;
  background: linear-gradient(135deg, rgba(84,87,238,.5), rgba(20,26,43,.10) 55%, rgba(234,122,46,.4));
  box-shadow: var(--nl-card-shadow);
}
.hx-feature__inner {
  position: relative; overflow: hidden;
  background: var(--nl-card); border-radius: 9px;
  padding: clamp(22px, 2.4vw, 32px); height: 100%;
  display: flex; flex-direction: column;
}
.hx-feature__head { display: flex; justify-content: space-between; align-items: flex-start; gap: 14px; margin-bottom: 18px; flex-wrap: wrap; }
.hx-pill { font-size: .64rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--nl-accent); background: rgba(84,87,238,.10); padding: 5px 11px; border-radius: var(--nl-radius); }
.hx-status { display: inline-flex; align-items: center; gap: 7px; font-size: .64rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--nl-text-dim); }
.hx-status::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--nl-success); box-shadow: 0 0 0 3px rgba(31,157,87,.16); }
.hx-feature__title { font-family: var(--nl-font-serif); font-weight: 500; font-size: clamp(1.4rem, 2.2vw, 1.9rem); letter-spacing: -0.02em; margin: 0 0 10px; }
.hx-feature__title em, .hx-feature__title .ac { font-style: italic; color: var(--nl-accent); }
.hx-feature__desc { font-size: .94rem; line-height: 1.55; color: var(--nl-text-dim); max-width: 48ch; margin: 0 0 22px; }
.hx-feature__bg {
  position: absolute; top: 0; right: 0; width: 40%; height: 100%; z-index: 0;
  object-fit: cover; opacity: .07;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(to left, #000, transparent);
  mask-image: linear-gradient(to left, #000, transparent);
}
.hx-feature__inner > *:not(.hx-feature__bg) { position: relative; z-index: 1; }

/* Flow row inside the feature card */
.hx-flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin: 0 0 22px; }
.hx-flow__item { position: relative; background: var(--nl-surface); border-radius: var(--nl-radius); padding: 14px 12px; box-shadow: inset 0 0 0 1px var(--nl-border-soft); }
.hx-flow__item--ai { box-shadow: inset 0 0 0 1px rgba(84,87,238,.30); }
.hx-flow__item--human { box-shadow: inset 0 0 0 1px rgba(234,122,46,.35); }
.hx-flow__ico { width: 32px; height: 32px; border-radius: 7px; display: flex; align-items: center; justify-content: center; background: rgba(84,87,238,.10); color: var(--nl-accent); margin-bottom: 10px; }
.hx-flow__item--human .hx-flow__ico { background: rgba(234,122,46,.12); color: var(--nl-accent-2); }
.hx-flow__ico i { width: 17px; height: 17px; }
.hx-flow__label { font-size: .62rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--nl-accent); margin: 0 0 5px; }
.hx-flow__text { font-size: .78rem; line-height: 1.45; color: var(--nl-text-dim); margin: 0; }
.hx-flow__item:not(:last-child)::after { content: "›"; position: absolute; right: -8px; top: 50%; transform: translateY(-50%); color: var(--nl-accent); opacity: .6; z-index: 2; font-size: 1.1rem; }

.hx-feature__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: auto; }

/* Side cards */
.hx-side { grid-column: span 4; display: flex; flex-direction: column; gap: 16px; }
.hx-side .hx-card { flex: 1; }

/* ───────────────────────── Checklist (approach) ───────────────────────── */
.hx-checklist { list-style: none; margin: 0; padding: 0; display: grid; gap: 11px; }
.hx-check { display: flex; align-items: flex-start; gap: 12px; font-size: .96rem; line-height: 1.5; color: var(--nl-text); }
.hx-check__ico { flex: 0 0 26px; width: 26px; height: 26px; border-radius: var(--nl-radius); background: rgba(31,157,87,.12); color: var(--nl-success); display: inline-flex; align-items: center; justify-content: center; margin-top: 1px; }
.hx-check__ico i { width: 15px; height: 15px; }

/* ───────────────────────── FAQ ───────────────────────── */
.hx-faq { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 10px; }
.hx-faq__item { background: var(--nl-card); border-radius: var(--nl-radius-lg); box-shadow: var(--nl-card-shadow); padding: 2px 22px; transition: box-shadow .25s ease; }
.hx-faq__item[open] { box-shadow: var(--nl-card-shadow-hover); }
.hx-faq__q { cursor: pointer; list-style: none; padding: 17px 36px 17px 0; position: relative; font-family: var(--nl-font-serif); font-weight: 600; font-size: 1.06rem; letter-spacing: -0.01em; color: var(--nl-text); }
.hx-faq__q::-webkit-details-marker { display: none; }
.hx-faq__q::after { content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%); font-size: 1.4rem; font-weight: 300; color: var(--nl-accent); line-height: 1; }
.hx-faq__item[open] .hx-faq__q::after { content: "\2212"; }
.hx-faq__a { padding: 0 0 20px; color: var(--nl-text-dim); line-height: 1.6; font-size: .94rem; }
.hx-faq__a p { margin: 0; }

/* ───────────────────────── Projects / portfolio ───────────────────────── */
.hx-proj-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.hx-proj {
  display: flex; flex-direction: column;
  background: var(--nl-card); border-radius: var(--nl-radius-lg);
  box-shadow: var(--nl-card-shadow); overflow: hidden;
  transition: box-shadow .25s ease, transform .25s ease;
}
.hx-proj:hover { transform: translateY(-3px); box-shadow: var(--nl-card-shadow-hover); }
.hx-proj__media { position: relative; display: block; aspect-ratio: 16 / 10; overflow: hidden; background: var(--nl-surface); }
.hx-proj__media img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .5s ease; }
.hx-proj:hover .hx-proj__media img { transform: scale(1.04); }
.hx-proj__tag {
  position: absolute; top: 12px; left: 12px;
  background: rgba(255,255,255,.92); color: var(--nl-text);
  font-size: .64rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  padding: 5px 10px; border-radius: var(--nl-radius); white-space: nowrap;
  box-shadow: 0 2px 10px rgba(28,38,86,.16);
}
.hx-proj__media--ph .hx-proj__tag { top: 12px; left: 12px; }
/* Placeholder media (no screenshot yet) */
.hx-proj__media--ph { display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, rgba(84,87,238,.14), rgba(234,122,46,.10)); }
.hx-proj__media--ph span { font-family: var(--nl-font-serif); font-style: italic; font-size: 1.8rem; color: var(--nl-accent); }
.hx-proj__body { display: flex; flex-direction: column; flex: 1; padding: 22px; }
.hx-proj__name { font-family: var(--nl-font-serif); font-weight: 600; font-size: 1.25rem; letter-spacing: -0.01em; margin: 0 0 8px; }
.hx-proj__text { font-size: .9rem; line-height: 1.55; color: var(--nl-text-dim); margin: 0 0 16px; }
/* Unified footer: same skeleton on every card (stat band of fixed height + link
   row), so metrics and links line up horizontally across the three cards. */
.hx-proj__foot { margin-top: auto; padding-top: 16px; box-shadow: inset 0 1px 0 0 var(--nl-border); }
.hx-proj__stats { display: flex; gap: 26px; min-height: 48px; align-items: flex-start; }
.hx-proj__stat { display: flex; flex-direction: column; gap: 3px; }
.hx-proj__metric { font-family: var(--nl-font-serif); font-weight: 600; font-size: 1.55rem; color: var(--nl-accent); line-height: 1; }
.hx-proj__metric-label { font-size: .74rem; color: var(--nl-text-dim); line-height: 1.3; }
.hx-proj__status { display: inline-flex; align-items: center; gap: 8px; min-height: 48px; font-size: .84rem; font-weight: 600; color: var(--nl-accent-2); }
.hx-proj__status::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--nl-accent-2); box-shadow: 0 0 0 3px rgba(234,122,46,.18); }
.hx-proj__link { display: inline-flex; align-items: center; gap: 6px; margin-top: 12px; color: var(--nl-accent); font-weight: 600; font-size: .85rem; transition: gap .2s ease; }
.hx-proj__link:hover { gap: 10px; text-decoration: none; }
.hx-proj__link i { width: 14px; height: 14px; }
.hx-proj__cta { text-align: center; margin-top: clamp(28px, 4vw, 44px); }
.hx-proj__cta p { color: var(--nl-text-soft); font-size: 1.02rem; margin: 0 0 16px; }
@media (max-width: 860px) { .hx-proj-grid { grid-template-columns: 1fr; max-width: 460px; margin-inline: auto; } }

/* ───────────────────────── Final CTA ───────────────────────── */
.hx-cta { position: relative; overflow: hidden; text-align: center; padding: clamp(60px, 8vw, 96px) 0; }
.hx-cta::before { content: ""; position: absolute; top: 50%; left: 50%; width: 760px; height: 760px; transform: translate(-50%,-50%); background: radial-gradient(circle, rgba(84,87,238,.10), transparent 60%); filter: blur(100px); z-index: 0; pointer-events: none; }
.hx-cta .container { position: relative; z-index: 1; }
.hx-cta__title { font-family: var(--nl-font-serif); font-weight: 500; font-size: clamp(1.9rem, 4vw, 3rem); line-height: 1.04; letter-spacing: -0.03em; margin: 0 0 14px; }
.hx-cta__title em, .hx-cta__title .ac { font-style: italic; color: var(--nl-accent); }
.hx-cta__desc { font-size: clamp(1rem, 1.2vw, 1.1rem); font-weight: 400; color: var(--nl-text-soft); max-width: 600px; margin: 0 auto 26px; line-height: 1.55; }
.hx-cta__actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }

/* ───────────────────────── Responsive ───────────────────────── */
@media (max-width: 1024px) {
  .hx-feature { grid-column: span 12; }
  .hx-side { grid-column: span 12; flex-direction: row; }
  .hx-grid--4 { grid-template-columns: repeat(2, 1fr); }
  .hx-grid--3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .hx-split { grid-template-columns: 1fr; }
  .hx-figure { order: -1; }
  .hx-steps { grid-template-columns: 1fr 1fr; gap: 22px 12px; }
  .hx-step:not(:last-child) { box-shadow: none; }
  .hx-flow { grid-template-columns: 1fr 1fr; gap: 12px; }
  .hx-flow__item::after { display: none; }
}
@media (max-width: 640px) {
  .hx-grid--2, .hx-grid--3, .hx-grid--4 { grid-template-columns: 1fr; }
  .hx-side { flex-direction: column; }
  .hx-steps { grid-template-columns: 1fr; }
  .hx-hero__actions .cta, .hx-hero__actions .cta-secondary { width: 100%; justify-content: center; }
}
@media (prefers-reduced-motion: reduce) {
  .hx-card { transition: none; }
}